Tides Today & Tomorrow in Portland, ME

TIDE TIMES for Tuesday, June 30, 2026
The tide is currently rising in Portland, ME.
Next low tide (tomorrow) : 6:58 am (0.3 ft)
Next high tide (tomorrow) : in 1h 22m at 12:30 am (9.8 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:02 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8418150
Common Questions About Tides

Portland, ME Tides - Nov 2006

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:419.17:029.712:200.312:460.76:164:32Waxing Gibbous1Wed
2Thu7:389.88:0310.01:190.01:480.06:184:30Waxing Gibbous2Thu
3Fri8:3010.58:5910.32:13-0.32:45-0.76:194:29Waxing Gibbous3Fri
4Sat9:1911.19:5310.43:04-0.53:38-1.36:204:28Full Moon4Sat
5Sun10:0811.510:4510.43:53-0.64:30-1.66:224:27Full Moon5Sun
6Mon10:5611.611:3710.24:42-0.55:21-1.76:234:25Full Moon6Mon
7Tue11:4511.45:31-0.26:12-1.56:244:24Waning Gibbous7Tue
8Wed12:299.812:3511.06:210.17:03-1.06:264:23Waning Gibbous8Wed
9Thu1:219.41:2710.57:120.67:57-0.56:274:22Waning Gibbous9Thu
10Fri2:168.92:229.98:061.18:540.16:284:21Waning Gibbous10Fri
11Sat3:148.53:229.49:051.59:530.66:294:20Third Quarter11Sat
12Sun4:138.34:239.010:071.810:520.96:314:19Third Quarter12Sun
13Mon5:128.25:248.711:101.911:491.26:324:18Third Quarter13Mon
14Tue6:088.36:238.512:131.86:334:17Third Quarter14Tue
15Wed7:008.57:198.512:431.21:111.66:354:16Waning Crescent15Wed
16Thu7:478.88:098.51:321.32:021.26:364:15Waning Crescent16Thu
17Fri8:289.18:548.62:151.22:470.96:374:14Waning Crescent17Fri
18Sat9:069.49:368.62:531.23:270.66:384:13Waning Crescent18Sat
19Sun9:429.610:168.63:291.24:040.36:404:12New Moon19Sun
20Mon10:179.710:558.64:041.24:400.16:414:11New Moon20Mon
21Tue10:529.811:338.64:401.25:170.06:424:11New Moon21Tue
22Wed11:299.95:171.25:550.06:444:10New Moon22Wed
23Thu12:118.512:089.95:561.26:360.06:454:09Waxing Crescent23Thu
24Fri12:518.412:509.96:391.37:200.16:464:08Waxing Crescent24Fri
25Sat1:358.41:379.87:251.38:080.16:474:08Waxing Crescent25Sat
26Sun2:258.42:309.78:171.39:010.26:484:07First Quarter26Sun
27Mon3:218.53:299.59:151.39:560.26:504:07First Quarter27Mon
28Tue4:188.74:329.410:181.110:540.26:514:06First Quarter28Tue
29Wed5:179.15:379.311:230.811:520.26:524:06First Quarter29Wed
30Thu6:169.66:439.312:290.46:534:05Waxing Gibbous30Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8418150)

Common Questions About Portland, ME Tides

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What time does the tide turn (slack tide) in Portland, ME today?

Slack tide in Portland, ME is approximately 3:44 am — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Portland, ME?

Portland, ME is currently in a spring phase. Tonight's moon is 100% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are near their weekly maximum.

What datum are Portland, ME tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Portland, ME?

Tide predictions for Portland, ME come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Portland, ME?

Tide data for Portland, ME is sourced from NOAA Station #8418150. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8418150.

What is the moon phase in Portland, ME tonight?

Tonight the moon over Portland, ME is Full Moon (100% illuminated). This places Portland, ME in a spring tide cycle, so tidal ranges are near their weekly maximum this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA